Global Patent Index - EP 1424798 A2

EP 1424798 A2 20040602 - Wavelength allocation method of signal light, optical transmission apparatus and wavelength division multiplexing optical transmission system using the method

Title (en)

Wavelength allocation method of signal light, optical transmission apparatus and wavelength division multiplexing optical transmission system using the method

Title (de)

Verfahren zur Zuordnung von Wellenlängen eines Signallichts, Vorrichtung zur optischen Übertragung und System zur optischen Wellenlängenmultiplex-Übertragung zur Durchführung dieses Verfahrens

Title (fr)

Procédé d'allocation de longeurs d'ondes d'un signal lumineux, dispositif de transmission optique et système de transmission optique à multiplexage en longueurs d'ondes utilisant ce procédé

Publication

EP 1424798 A2 20040602 (EN)

Application

EP 03026929 A 20031125

Priority

JP 2002341962 A 20021126

Abstract (en)

An object of the invention is to provide a wavelength allocation method of signal light, which is capable of consecutively allocating signal lights efficiently on wavelength grids, while suppressing degradation in transmission characteristic due to the generation of four-wave mixed light in an optical transmission path. To this end, according to the wavelength allocation method of signal light, the consecutive allocation wavelength number of signal lights to be allocated consecutively on the wavelength grids, is set to different values according to wavelength bands, based on wavelength dependence of a generation amount of four-wave mixed light on the optical transmission path, and the signal lights are allocated consecutively on the wavelength grids in accordance with this consecutive allocation wavelength number, but the signal light is not allocated on at least one wavelength grid adjacent to the wavelength grids on which a group of signal light are allocated consecutively.

IPC 1-7

H04J 14/02

IPC 8 full level

H04B 10/02 (2006.01); H04B 10/18 (2006.01); H04B 10/2507 (2013.01); H04B 10/2513 (2013.01); H04B 10/2537 (2013.01); H04B 10/2563 (2013.01); H04J 14/02 (2006.01)

CPC (source: EP US)

H04J 14/02 (2013.01 - EP US); H04J 14/0224 (2013.01 - EP US); H04J 14/0227 (2013.01 - EP US); H04J 14/0295 (2013.01 - EP US); H04J 14/0213 (2013.01 - EP US); H04J 14/0279 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 1424798 A2 20040602; EP 1424798 A3 20060426; EP 1424798 B1 20070725; DE 60315114 D1 20070906; DE 60315114 T2 20080410; JP 2004179836 A 20040624; JP 4115814 B2 20080709; US 2004190903 A1 20040930; US 7471902 B2 20081230

DOCDB simple family (application)

EP 03026929 A 20031125; DE 60315114 T 20031125; JP 2002341962 A 20021126; US 72343703 A 20031126